(prototype) the GT Mini

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JasonWW
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Swib wrote:
JasonWW wrote:
Swib wrote:
The best I can get is about 110 kcd but given that it only draws 4.5 amps on turbo
Is this a NW or CW version? What battery are you using?

Neutral White with a 30Q. Like I said not terribly disappointed because it takes a FET driver doing about 5.8 amps in a C8 with the same led to best it with a reverse tail clicky which doesn’t behave well with ramping UI.

I might pry off the bezel to see if it can be better focused.


I know the NW reads a bit lower, but I’m wondering why you only got 4.5A out of a 30Q. That’s the same battery I’m using and I got 5.5A.

Does the emitter look off center in the reflector? I was thinking it’s practically impossible for it to be off center due to way the centering ring is made.

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Swib
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No it’s not off center. I haven’t measured the current yet. I was using the current listed in the OP. I will check that and get back.

If you don’t like what it looks like on the wall, take it outside.

JasonWW
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Swib wrote:
No it’s not off center. I haven’t measured the current yet. I was using the current listed in the OP. I will check that and get back.

So your thinking the centering ring is either too high or too low?

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Swib
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JasonWW wrote:
Swib wrote:
No it’s not off center. I haven’t measured the current yet. I was using the current listed in the OP. I will check that and get back.
So your thinking the centering ring is either too high or too low?

I can’t measure the current with ramping, all I get is the double flash on my clamp meter.

Yes, I do believe that the centering ring isn’t the right height for proper focus. From what I’ve learned on here a dedomed led should have a focal point of about one meter like this

Here is the GT mini

On the wall the focal point (where the black center dot disappears) is only a couple of inches with the GT mini.

Feel free to correct me if I’m wrong.

If you don’t like what it looks like on the wall, take it outside.

Swib
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In case your wondering the first pic is a C8 with dedomed XP-G2 S4 2B 2S light that throws 760 meters for the duration of the battery life.

If you don’t like what it looks like on the wall, take it outside.

chops728
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Are you measuring the Throw at the top of the ramp (not Turbo) double click to put it in Turbo —-my NW mine GT is getting 143k pulling 5.7amps —thats on a VTC6

Swib
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No I’m measuring at turbo. When first trying out the light I measured at the top of the ramp but after reading the included instructions I measured at turbo. The numbers I gave are from turbo.

If you don’t like what it looks like on the wall, take it outside.

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JasonWW wrote:
lexvegas wrote:

What’s the desire to replace the stock switch? Just for a better feeling click?


To swap the driver.

I was talking about replacing the switch because of failure or breakdown due to normal wear and tear. I believe the stock driver is already good as it is. For most people, there is really no compelling reason to replace the driver. Lumintop made a good business decision in using ATMEL MCU and BLF-inspired FET+1 driver design. Actually, this is the main selling point for me.

mortuus
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swib try different batteries to rule out that atleast. weird one guy gets kcd in the 140 range u in 110… too much difference imo..

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JasonWW
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Swib wrote:

I can’t measure the current with ramping, all I get is the double flash on my clamp meter.

Do you have your clamp meter settings correct? DC voltage, range of at least 7+ Amps? Using a short, thick wire?
Swib wrote:

Yes, I do believe that the centering ring isn’t the right height for proper focus. From what I’ve learned on here a dedomed led should have a focal point of about one meter like this

On the wall the focal point (where the black center dot disappears) is only a couple of inches with the GT mini.


I’ve never heard of such things, so I’m not much help here.

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bunnicula
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JasonWW wrote:
Swib wrote:
JasonWW wrote:
Swib wrote:
The best I can get is about 110 kcd but given that it only draws 4.5 amps on turbo
Is this a NW or CW version? What battery are you using?

Neutral White with a 30Q. Like I said not terribly disappointed because it takes a FET driver doing about 5.8 amps in a C8 with the same led to best it with a reverse tail clicky which doesn’t behave well with ramping UI.

I might pry off the bezel to see if it can be better focused.


I know the NW reads a bit lower, but I’m wondering why you only got 4.5A out of a 30Q. That’s the same battery I’m using and I got 5.5A.

Does the emitter look off center in the reflector? I was thinking it’s practically impossible for it to be off center due to way the centering ring is made.

I only got 4.8A with the same setup as yours. Posted it a few pages back.

EDIT:

Measured the current draw again using a fresh batt (VTC5) and was able to get 5.65A. Repeated the test and was able to get the same figure. With a resting voltage of 4.15V, I was able to get 5.53A.

DB Custom
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Swib, technically the XP-L HI is not a de-domed emitter and it’s certainly a different beast than a de-domed XP-G2, so these will have different focus requirements. That inverted V shape is indeed a good indicator but 1 meter is entirely too close to reference point-of-focus… a really strong thrower has that point many times further out.

I like to view the emitter from the front, inside the reflector, and see how far back you have to get in order for the yellow phosphor to fill the reflector, that usually shows where the focus point is.

As far as determining just where to position the die surface in the reflector, without the schematic on the reflector it can be a hit-or-miss proposition and simply a hands-on trial basis to find what works best in a particular light.

Good luck!

Swib
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JasonWW wrote:
Swib wrote:

I can’t measure the current with ramping, all I get is the double flash on my clamp meter.

Do you have your clamp meter settings correct? DC voltage, range of at least 7+ Amps? Using a short, thick wire?
Swib wrote:

Yes, I do believe that the centering ring isn’t the right height for proper focus. From what I’ve learned on here a dedomed led should have a focal point of about one meter like this

On the wall the focal point (where the black center dot disappears) is only a couple of inches with the GT mini.


I’ve never heard of such things, so I’m not much help here.

Yeah it’s not my meter, I just can’t get the light to do anything but double flash when testing. Maybe I’m not fast enough with tapping the leads. I don’t have any problem on non-rampng lights. I’ll switch to the other mode group and try again today sometime.

If you don’t like what it looks like on the wall, take it outside.

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keep the wire in place - No tapping 

 

just operate with the sideswitch

 

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Swib
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DB Custom wrote:
Swib, technically the XP-L HI is not a de-domed emitter and it’s certainly a different beast than a de-domed XP-G2, so these will have different focus requirements. That inverted V shape is indeed a good indicator but 1 meter is entirely too close to reference point-of-focus… a really strong thrower has that point many times further out.

I like to view the emitter from the front, inside the reflector, and see how far back you have to get in order for the yellow phosphor to fill the reflector, that usually shows where the focus point is.

As far as determining just where to position the die surface in the reflector, without the schematic on the reflector it can be a hit-or-miss proposition and simply a hands-on trial basis to find what works best in a particular light.

Good luck!

It sure is hit and miss. I have a bag full of centering rings because I often sand off too much and start seeing the numbers go down on my meter.

If you don’t like what it looks like on the wall, take it outside.

Swib
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M4D M4X wrote:

keep the wire in place – No tapping 


 


just operate with the sideswitch

Facepalm I’m so used to measuring tail switch lights I didn’t even think of the side switch. Thank you.

If you don’t like what it looks like on the wall, take it outside.

Swib
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mortuus wrote:
swib try different batteries to rule out that atleast. weird one guy gets kcd in the 140 range u in 110… too much difference imo..

With the 30Q I use for testing I get 5.15 amps and with a slightly used VTC6 I get 5.48 amps and 120 kcd (with correction factor applied to my readings). Maybe it’s time to retire the old 30Q.

IMO the difference in output could be due to a higher Vf in this particular led. As I said it will find a good home where it will be appreciated.

If you don’t like what it looks like on the wall, take it outside.

teacher
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teacher wrote:
Mine is still somewhere between the A Ω ….. Apparently lost & confused in it’s search for the USA…… Facepalm

Latest Tracking Info below.

2018-08-03 22:46
Guangzhou, leave Guangzhou send to Guangzhou courier company
…..
2018-08-03 22:46
Guangzhou, leave Guangzhou and send to JFK Airport in New York.
…..
2018-08-03 05:34
CHINA, GUANGZHOU EMS, Processed Through Facility, Your item has been processed through a facility in GUANGZHOU EMS, CHINA at 5:34 am on August 3, 2018.
.
.
.

““We are all travelers in this world. From the sweet grass to the packing house, birth till death, we travel between the eternities.”” – Prentice Ritter

UPDATE: I am still winning the battle of no new or recent tracking info. Big Smile Big Smile Wink

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

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nkresho
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^ Same here, but never got the overnight in NYC. Been in china the whole time. I check it a few times a day at this point. It’s like a sickness.

Delta_V
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teacher wrote:
UPDATE: I am still winning the battle of no new or recent tracking info.

Try checking again, mine was in the same state as yours, but just updated (like, less than an hour ago) to “Arrived in New York”.

teacher
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Delta_V wrote:
teacher wrote:
UPDATE: I am still winning the battle of no new or recent tracking info.
Try checking again, mine was in the same state as yours, but just updated (like, less than an hour ago) to “Arrived in New York”.
Thanks for that info Delta_V & congrats to you on some movement in your Mini GT tracking. Thumbs Up

But I just checked and “no joy” for me… The ‘status quo of no updates’ for me & mind continues…. Big Smile Wink

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

       Texas Lumens Flashlights / M4D M4X Deals : sign up - save $$$$  

         Rudeness Level _ mΩ _ {width:70%} _ LightWiki _ LED Tint Chart  

      Xlamp size chart _ BatteryU _ Flashaholic? Need Professional Help???            TheOriginal _ TAB _ LightSearch _ BatterySearch _ 14500's _ DiCal 

 

                                             

chops728
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teacher wrote:
Delta_V wrote:
teacher wrote:
UPDATE: I am still winning the battle of no new or recent tracking info.
Try checking again, mine was in the same state as yours, but just updated (like, less than an hour ago) to “Arrived in New York”.
Thanks for that info Delta_V & congrats to you on some movement in your Mini GT tracking. Thumbs Up

But I just checked and “no joy” for me… The ‘status quo of no updates’ for me & mind continues…. Big Smile Wink

Teacher — I think you should go double check your mailbox—you might have missed it in there— The box was much smaller than I imagined it being— Big Smile Big Smile

AgentWhiteBread
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USPS wrote:

August 1, 2018, 6:33 am
Processed Through Facility
GUANGZHOU EMS, CHINA
Your item has been processed through a facility in GUANGZHOU EMS, CHINA at 6:33 am on August 1, 2018.

Origin Post is Preparing Shipment
July 31, 2018, 5:55 pm
Acceptance
CHINA

I’m thinking it shipped by boat because I’ve had other orders from China placed on the 8th arrive by now.

teacher
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chops728 wrote:
teacher wrote:
Delta_V wrote:
teacher wrote:
UPDATE: I am still winning the battle of no new or recent tracking info.
Try checking again, mine was in the same state as yours, but just updated (like, less than an hour ago) to “Arrived in New York”.
Thanks for that info Delta_V & congrats to you on some movement in your Mini GT tracking. Thumbs Up

But I just checked and “no joy” for me… The ‘status quo of no updates’ for me & mind continues…. Big Smile Wink

Teacher — I think you should go double check your mailbox—you might have missed it in there— The box was much smaller than I imagined it being— Big Smile Big Smile
I already did that my brother, in fact I broke out the magnifying glass as well as binoculars to double & triple check. Big Smile
Still……. no joy. CryingBig Smile . Big Smile

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

       Texas Lumens Flashlights / M4D M4X Deals : sign up - save $$$$  

         Rudeness Level _ mΩ _ {width:70%} _ LightWiki _ LED Tint Chart  

      Xlamp size chart _ BatteryU _ Flashaholic? Need Professional Help???            TheOriginal _ TAB _ LightSearch _ BatterySearch _ 14500's _ DiCal 

 

                                             

teacher
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AgentWhiteBread wrote:

I’m thinking it shipped by boat because I’ve had other orders from China placed on the 8th arrive by now.

Yep, either boat or a ‘trained bird’ that keeps getting lost. Big Smile . Big Smile

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

       Texas Lumens Flashlights / M4D M4X Deals : sign up - save $$$$  

         Rudeness Level _ mΩ _ {width:70%} _ LightWiki _ LED Tint Chart  

      Xlamp size chart _ BatteryU _ Flashaholic? Need Professional Help???            TheOriginal _ TAB _ LightSearch _ BatterySearch _ 14500's _ DiCal 

 

                                             

lexvegas
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Don’t know if it helps, but I ordered mine on Aug 7, received it on Aug 20, this is Mid-Atlantic.

Delta_V
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AgentWhiteBread wrote:
USPS wrote:

August 1, 2018, 6:33 am
Processed Through Facility
GUANGZHOU EMS, CHINA
Your item has been processed through a facility in GUANGZHOU EMS, CHINA at 6:33 am on August 1, 2018.

Origin Post is Preparing Shipment
July 31, 2018, 5:55 pm
Acceptance
CHINA

I’m thinking it shipped by boat because I’ve had other orders from China placed on the 8th arrive by now.

Yeah, I’m definitely a little disappointed. I hopped on the preorder, but I feel like I’d have gotten it by now if I had just ordered through BangGood instead. They even have coupons floating around to get it at the same price.

lexvegas
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Mine was from Neil, not BG

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AgentWhiteBread wrote:
USPS wrote:

August 1, 2018, 6:33 am
Processed Through Facility
GUANGZHOU EMS, CHINA
Your item has been processed through a facility in GUANGZHOU EMS, CHINA at 6:33 am on August 1, 2018.

Origin Post is Preparing Shipment
July 31, 2018, 5:55 pm
Acceptance
CHINA

I’m thinking it shipped by boat because I’ve had other orders from China placed on the 8th arrive by now.

If it was my guess, its on the Titanic. Just a thought.

I'm ThatCrazyFlashaholic 67

AgentWhiteBread
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Brainsick67 wrote:
If it was my guess, its on the Titanic. Just a thought.

Great, now I have to call James Cameron Big Smile

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